Firmware dump for a laptop mainboard marked NB2500_PCB_MB_V6, which looks like board NB2500 at version V6. The name states the BIOS was tested as fully working. It comes as a 4.68 MB RAR archive and gives no brand or laptop model, so identify the board by the label printed on the PCB. Extract the image and compare its size with the SPI flash chip before programming it with a CH341A or similar tool. Save a backup read of the original chip so the stock contents can be restored if needed.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 27 Feb 2024 | Open file on RM Schematics |
| @generalbios | 14 Jul 2024 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →